<template>
  <div class="home">
    <!-- 功能区域 -->
    <div style="margin: 10px 0;">
      <el-button type="primary" @click="add">新增</el-button>
    </div>
    <!-- 搜索区域 -->
    <div style="margin: 10px 0;">
      <el-input
          v-model="search"
          placeholder="请输入关键字"
          style="width: 20%;"
          clearable
      ></el-input>
      <el-button type="primary" style="margin-left: 5px" @click="load">查询</el-button>
    </div>

    <el-table :data="tableData" border stripe style="width: 100%">
      <el-table-column prop="id" label="ID" sortable></el-table-column>
      <el-table-column prop="username" label="用户名"></el-table-column>
      <el-table-column prop="nickName" label="昵称"></el-table-column>
      <el-table-column prop="age" label="年龄"></el-table-column>
      <el-table-column prop="sex" label="性别"></el-table-column>
      <el-table-column prop="address" label="地址"></el-table-column>
      <el-table-column fixed="right" label="操作">
        <template #default="scope">
          <el-button @click="handleEdit(scope.row)" size="mini">编辑</el-button>
          <el-popconfirm title="确定删除吗？" @confirm="handleDelete(scope.row.id)">
            <template #reference>
              <el-button type="danger" size="mini">删除</el-button>
            </template>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页 -->
    <div style="margin: 10px 0;">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="currentPage"
          :page-sizes="[5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
      >
      </el-pagination>
    </div>
    <el-dialog
        title="新增用户"
        v-model="dialogVisible"
        width="30%">
      <el-form :model="form" label-width="120px">
        <el-form-item label="用户名">
          <el-input v-model="form.username" style="width: 80%;"></el-input>
        </el-form-item>
        <el-form-item label="昵称">
          <el-input v-model="form.nickName" style="width: 80%;"></el-input>
        </el-form-item>
        <el-form-item label="年龄">
          <el-input v-model="form.age" style="width: 80%;"></el-input>
        </el-form-item>
        <el-form-item label="性别">
          <el-radio v-model="form.sex" label="男">男</el-radio>
          <el-radio v-model="form.sex" label="女">女</el-radio>
          <el-radio v-model="form.sex" label="其他">其他</el-radio>
        </el-form-item>
        <el-form-item label="地址">
          <el-input type="textarea" v-model="form.address" style="width: 80%;"></el-input>
        </el-form-item>
      </el-form>
      <template #footer>
    <span class="dialog-footer">
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="save">确 定</el-button>
    </span>
      </template>
    </el-dialog>
  </div>
</template>

<script>
import request from "@/utils/request";

export default {
  name: "Home",
  components: {},
  data() {
    return {
      form: {},
      search: "",
      dialogVisible: false,
      tableData: [],
      currentPage: 1,
      pageSize: 5,
      total: 10,
    };
  },
  created() {
    this.load();
  },
  methods: {
    // 获取用户
    load() {
      request.get("/api/user", {
        params: {
          pageNum: this.currentPage,
          pageSize: this.pageSize,
          search: this.search
        }
      }).then(res => {
        this.tableData = res.data.records
        this.total = res.data.total
      })
    },
    // 新增用户
    add() {
      // 打开弹窗
      this.dialogVisible = true;
      this.form = {}
    },
    // 保存用户到后台
    save() {
      // 有id就表示要更新数据
      if (this.form.id) {
        request.put("/api/user", this.form).then(res => {
          if (res.code === '0') {
            this.$message({
              type: "success",
              message: "更新成功"
            })
          } else {
            this.$message({
              type: "error",
              message: res.msg
            })
          }

        })
        this.load()
        // 获取本地存储的用户与当前登陆的用户比较,如果是一个人就更新本地存储
        const str = sessionStorage.getItem("user")
        const user = JSON.parse(str)
        if (user.id === this.form.id) {
          sessionStorage.setItem("user", JSON.stringify(this.form))
        }

      } else {// 否则就是插入新数据
        request.post("/api/user", this.form).then(res => {

          if (res.code === '0') {
            this.$message({
              type: "success",
              message: "新增成功"
            })
          } else {
            this.$message({
              type: "error",
              message: res.msg
            })
          }

        })

        this.load()
      }
      this.dialogVisible = false
    },
    // 修改用户
    handleEdit(row) {
      console.log(row)
      this.form = JSON.parse(JSON.stringify(row))
      this.dialogVisible = true
    },
    handleSizeChange(pageSize) {// 改变当前每页的个数触发
      this.pageSize = pageSize
      this.load()
    },
    handleCurrentChange(pageNum) {// 改变当前页码触发
      this.currentPage = pageNum
      this.load()
    },
    // 删除用户
    handleDelete(id) {
      request.delete("/api/user/" + id).then(res => {
        if (res.code === '0') {
          this.$message({
            type: "success",
            message: "删除成功"
          })
        } else {
          this.$message({
            type: "error",
            message: res.msg
          })
        }
        this.load()
      })
    }
  },
};
</script>

<style scoped>
.home {
  padding: 10px;
}
</style>
